Why do we eat turkey for Thanksgiving?

I presume it was because the Native Americans introduced the bird to the Pilgrims (but not necessarily on Thanksgiving Day). It was a large bird that was not migratory and therefore was available throughout the year. It was large enough to feed more than one family. Have you ever eaten a wild turkey? Moma-mia! If cooked right, it tastes much better than a Butter-Ball and a lot less fat in your diet. Wild turkeys feed on acorns and other natural products(including insects and small reptiles, etc.) that give them a totally different taste.